Guard for shoe-stitching machines.



F. ASHWORTH.

GUARD FOR SHOE STITGHING MA'GHINES.

APPLICATION men 002.29.1315.

Patented 1111131913.

STATESPATENT omen;

ease Asnwbarfi, or seven;-

massac'nusnrrs.'assrenoa, BY vmcma AssIennews, "to smear SHOE MACHINERYconPonA'rIoN, or PATEBSON, new JERSEY,

weer-mama or NEW messy.

,G UAED FOB, SI- IOE STITGHIING MACHINES.

weasel.

To a'll whom it may concern.

Specification of Letters-Patent.

, of parts which are hereinafter described will enable others skilled inthe art to Which it appertai'ns to make and use the same.

This inventi-onrelates to guards forshoe stitching machines.

.111 a common type of a curved needle lock stitch shoe sewing machinethe shoe upper comes inclose proxiniit to the field of op oration-of theloope'r an stitching opera carry a wax thread, vand are often coatedwith oil, so "that if the upper comes incontact wlth thein it will bedamaged. To keep the wax in fluid condition. the looper and take up areheated, and any contactwvith one of theseheated parts willoften discolorcertain kinds of shoe uppers.

The primary object of the pr'esentinven- I tion is to provide a guard ofimprovedconstruction to hold the shoe upper out of the field ofoperation of thelooper and take up.

In accordance rir ihjlthis object, one fee 'tfui'e offthe inven ncontemplates 'thelp'rovision of a guard g or the shoe stitching mechenjseompnsmg th achinefbetween the take up and the W k' {and an apronadjustably mounted on th older and jlfo'c'zited betweenthe lociper Edithe'wdrk. ril h'efipron can be adjusted t e a fteriniiieuipqsitiqnreference toithe Work 'n this position.

support; and ock'ed 1 'thelpreirrad on of the invention th s me e thinsheetfmetal to d giveslifiidliili ilgldliiyfiiiid antenna sufli- *eiemspace in rontof the stitch forming {mechanism for th'e movement or theupper. is "item necessar to have"access :to "the qwpe ffcrijthreadlngfinspecting, etc. and hfft'ofoi'e the apron has "beenconstructed .,-of leather to -gi'v teesasap the loopcr.

and dunitlhto formu a -endear gua rd. .Ac-

eord'ngl-y another feeture "of the ainvention 'm'riteraplate thelprevi'sien "of a -thin man qgaa'r'd "for a shoe seething finachine toprotake up during the tion. The looper and take up a holder attachedtodf thefholder to a prede j loopeix Theseparts Errcrmadcofthiu sheet"-metal which are properly'shapcd to-extenfrl closely to the pathoilcmovcmcntof *the take Patented J an. 15, 1918.

Application filed December 2a, 1915. Serial No. 69,228.

tect theshoe upper from the stitch forming mechanism, the guard beingpivotally mounted on the machine so that it can be set forth in theclaims.

The various features of the inventionare illustrated in the accompanyingdrawings in 'Which' Figure 1 is a front elevation of per- Moms of a lockstitch sewing machine ad]a "cent the sewing point, showing the relationof the improved guard thereto; Fig. 2 1s a side elcvation of the partsshown in Fig. 1

Fig, 3 is a detail sectional view showing the pivotal mounting of theguard upon-the ma chine; and Fig. -'l is a detail. view of the guardshowing the adji'lstaihle connection-of the apron with theholder,

The invention is fillllfiiilltted asembodied in a shoe stitch ngmachmeo-f the type oommonly. known as the Goodyear rapid lloc'le andstitch. This machine is provided'with the usual hook needle 10, looper12, 'WOIk-.Sl'l1?)'-' 'port 14;, presser foot 16,- edge up 20, andauxiliary take up 22.

parts are substantially the same as those shown-in the patent toFrenchand. Meyer, No. 473,870, dated April 26, 1892, to which referenceis made for a-detailcd description of vthe parts. The :guard holderwhich isi niounted on the-machine in for piptectingthe upper drum thestitch forming mechanism comprises a front Offthe take up, and an apronadjustably {mounted on the :holder in front of ithe 11p and looper sothat suflieient room will "be r qivenfor the inoven enttof the flipper(luv ing i'thcstitching operation, and still a 'fiordingsufiicientrigi'clity :to support themppezrz 1:

Thozguard consistso'f a holder fl t-and an a pron 26 1011 gitudinallyadj ustahly mounted "thereon. l he holderigkhas an erm'28 thy which the. gu ard may be attached to the edge slide-3010 'hold :it in {positionapron 26=-shoultl be adjusted to a prede termi ned apo'sition with"relationato the work on the stitching machine, the position of the aron may vary with dilferent supports.

he adjustable mounting of the apron upon the holder consists of a pairof slots 32 in the bottom of the apron whiclt lit over a gain of screws34 mounted in the holder 24.

0 look the apron in adjusted position the screws 34 are threaded into aclip 36 held on the back of the apron so that the apron is clampedbetween the holder and the clip.

To' adapt the guard to be swum out of operative position to give accessto t 1e looper and take up. the arm 23 oh the'holder 24 is provided witha slot 38 which fits over a pivot screw 40. The slot 38 has a countersunk opening 42 at its inner end, and the head of the screw 40 is shapedto lit with in this counter sunk opening. By this eonstruetion the screwcan he placed in the counter sunk opening light enough to hold the guardin place and still permit the guard to be rotated out of operativeposition to give access to the looper. \Vhen the head of the screw it)is in the counter sunk opening the guardinay be pivot-ally rotatable,butannot be displaced from the screw. The slot 38 a ll'ords a means bywhich the guard may be readily removed from the machine by withdrawingthe screu'fiilroln the counter sunk opening 42. The operative}')0Siti0l1 of the guard is determined by an abutmentshoulder 41striking against the slidtuP-O. It will be noted that the pivotalmounting of the guard is on its leading side with re terence to themovement of the shoe upper, So that the feeding movement of the shoetends to hold the shoulder 44 against the slide 30 and maintain the.guard in correct operative position.

'hile the invention has been illustrated as embodied in a particulartype of sewing machine, it is not limited to use in this type ofmachine, but. may be employed in any type at machine in which the uppermoves in close proximity to the glitch forming mechanism}, to protectthe upper from in: jury. I

of the invention, what is claimed as new is:

L A guard for a shoe stitching machine comprising, a holder seeured tothe machine below the stitching point, a long liniinally adjustableapron attachedto the holder and located in front of the loop'er. and mans to lock the apron in adjusted position.

Having thus described a preferred forth mamas:

2. A shoe stitching machine having in combination, stitch formingdevices including a looper and take-u), a guard for the work comprisinga holder secured to the machine between the take-up and the work, and anapron adjnstably, mounted on the holder between the looper and the work,he adjustable mounting of the apron consisting of a slot in the apronand a screw passing through the holde and said slot and secured in aclip positioned behind the, apron.

3. A guard for a shoe titching machine comprising, a holder positionedadjacent the looper, and a thin metal apron on said holder positioned infront of the looper, said guard having a pivotal mounting on the machineto be swung out of operative position to give access to the looper, saidpivotal mounting consistin r of a slotted arm projecting from the gu'artsaid slot having an interlocking connection with a screw in the machinewhich will permit a rotative movement of the guard while retaining itfrom removal fr m the screw.

4. A shoe stitching machine having in combination, Sl'll'cli formingdevices ineluding a loopeiand,take-up, a guard for-the work comprising aholder positioned between the take-up and the work, and an apron on saidholder positioned betweenthe looper and the work, said guard beingpivotally mounted to be swung out of position to give access to thelooper, the mounting including a slotted arm projecting from the'guard,a t'UllllitF-Sllllk opening in the slot, and a pivot screw having a headto fit the countersunk opening of the slot, secured in the machine,

A shoe stitching machine having, in

combination, stitch forming; devices includin a looper and take-up, aguard for the work comprising "a holder posltloned .be-

hteeu the take-up and the work, and an up on on said holder positionedbetween the loo er and the work, said guard being pivota sly mounted tobe swung out of position to give access to the looper, the mountingim-luding a slotted arm projecting from the guard. a counter-sunkopening in the slot, hrpivot screw having a head to fit the own-- tersunlv' opening of the slot, secured in the. j machine. and in abutmenton the guard-for engaging the int-chine to determine the op-- ('.Itlil\(position of the guard.

FRED ASH W ORTH..

